1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 244 · 40 questions

The trick (Reverse and subtract): Reverse the number and take the smaller number away from the bigger one. The answer is always one of 198, 297, 396, 495, 594, 693, 792, 891: middle digit 9, first and last digits adding to 9. Reverse that answer and add: you always get 1089.

1. 1.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
4. 4.Take 640. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.Take 247. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Do the 1089 trick with 529: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Take 932. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Take 287. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Do the 1089 trick with 689: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Do the 1089 trick with 590: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.792 + 297 =
12. 12.Do the 1089 trick with 511: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.Do the 1089 trick with 207: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
15. 15.Take 105. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Do the 1089 trick with 108: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Take 330. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Do the 1089 trick with 931: reverse and subtract, then reverse that answer and add. What do you get?
19. 19.297 + 792 =
20. 20.Take 930. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 581: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
23. 23.Take 377. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Do the 1089 trick with 940: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.Do the 1089 trick with 189: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Do the 1089 trick with 521: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 320. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 730: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Do the 1089 trick with 674: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.891 + 198 =
31. 31.Take 871. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Do the 1089 trick with 447: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Take 920. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Take 835. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 498. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 930: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Do the 1089 trick with 960: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.396 + 693 =
39. 39.Take 990. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 541. Reverse its digits and take the smaller number away from the bigger one. What do you get?

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks